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Articles 1981 - 2010 of 2936
Full-Text Articles in Social and Behavioral Sciences
Benefits Of Generalised Microsimulation, Daniel Keep, Ian Piper, Anthony Green
Benefits Of Generalised Microsimulation, Daniel Keep, Ian Piper, Anthony Green
Faculty of Engineering and Information Sciences - Papers: Part A
This paper states our position regarding the desirable properties of a discrete simulation environment and details our response to this. Following a brief introductory examination of the pre-existing art in microsimulation modelling, we describe our approach and detail its structure and use.
Decentralised Task Allocation Under Space, Time And Communication Constraints For Disaster Domain, Xing Su, Minjie Zhang, Quan Bai
Decentralised Task Allocation Under Space, Time And Communication Constraints For Disaster Domain, Xing Su, Minjie Zhang, Quan Bai
Faculty of Engineering and Information Sciences - Papers: Part A
The coordination of dynamic task allocation based on available resources is very challenging in disaster domains under time, space and communication constraints. In addition, it is also very hard or even impossible to achieve tasks allocation by using a centralised manner with the global knowledge of the working environment. This paper presents a novel decentralised coordination approach for dynamic task allocation by considering space, time and communication constraints in a disaster domain, and workloads and priorities of different tasks. In this approach, a group formation mechanism is proposed to help agents with limited communication range to achieve effective task allocation …
Mine Water Treatment Using A Vacuum Membrane Distillation System, Muttucumaru Sivakumar, M Ramezanianpour, G O Halloran
Mine Water Treatment Using A Vacuum Membrane Distillation System, Muttucumaru Sivakumar, M Ramezanianpour, G O Halloran
Faculty of Engineering and Information Sciences - Papers: Part A
Water scarcity and strict environmental regulations has seen the rapid development of membrane technologies in water and wastewater treatment. Effluent discharge from a local coal mine containing 2332 mg/L of TDS (Total Dissolved Solids), 14.4 mg/L of Ca, 2.72 mg/L of Mg, 1.92 mg/L of Fe and 3.38 mg/L of Al is treated by a vacuum membrane distillation system. This technology aims to remove particles and dissolved impurities by evaporation and condensation technique that mimics what occurs in nature within a water cycle. It employs a hollow-fiber membrane that enables to remove 99.9% of TDS from mine water. This paper …
On Improving Capacity And Delay In Multi Tx/Rx Wireless Mesh Networks With Weighted Links, Hung-Yi Loo, Sieteng Soh, Kwan-Wu Chin
On Improving Capacity And Delay In Multi Tx/Rx Wireless Mesh Networks With Weighted Links, Hung-Yi Loo, Sieteng Soh, Kwan-Wu Chin
Faculty of Engineering and Information Sciences - Papers: Part A
This paper considers the problem of deriving a link schedule for Time Division Multiple Access (TDMA)-based concurrent transmit/receive Wireless Mesh Networks (WMNs) that results in low end-to-end delays as well as high network capacity. We first propose a MAX-CUT heuristic approach, called Algo-2, that maximizes link activations in each slot of a super-frame. Algo-2 is shown to produce better network capacity as compared to existing heuristic approaches and significantly improves the super-frame length of an existing MAX-CUT approach that enforces 2-phase transmit-receive restriction - a node that transmits (receives) in slot i ≥ 1 is to become a receiver (transmitter) …
Lattice Reduction For Modular Knapsack, Thomas Plantard, Willy Susilo, Zhenfei Zhang
Lattice Reduction For Modular Knapsack, Thomas Plantard, Willy Susilo, Zhenfei Zhang
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper, we present a new methodology to adapt any kind of lattice reduction algorithms to deal with the modular knapsack problem. In general, the modular knapsack problem can be solved using a lattice reduction algorithm, when its density is low. The complexity of lattice reduction algorithms to solve those problems is upper-bounded in the function of the lattice dimension and the maximum norm of the input basis. In the case of a low density modular knapsack-type basis, the weight of maximum norm is mainly from its first column. Therefore, by distributing the weight into multiple columns, we are …
Routines, Reconfiguration And The Contribution Of Business Analytics To Organisational Performance, Abhijith Anand, Rajeev Sharma, Rajiv Kohli
Routines, Reconfiguration And The Contribution Of Business Analytics To Organisational Performance, Abhijith Anand, Rajeev Sharma, Rajiv Kohli
Faculty of Engineering and Information Sciences - Papers: Part A
Availability of large volumes of data in the firms has given a rise in interest in the potential use of business analytics applications. Research has investigated the potential of business analytics to deliver improved performance and competitive advantage at the firm level. However, a theoretical framework identifying the organisational factors which enables the firms to realise those performance gains and competitive advantage has not been clearly articulated. This paper proposes a theoretical framework identifying the organisational factors involved in realising performance gains and competitive advantage from business analytics. This paper draws on the foundational works of dynamic capabilities, routines and …
The Effects Of Firm It Capabilities On Firm Performance: The Mediating Effects Of Process Improvement, Abhijith Anand, Samuel Fosso Wamba, Rajeev Sharma
The Effects Of Firm It Capabilities On Firm Performance: The Mediating Effects Of Process Improvement, Abhijith Anand, Samuel Fosso Wamba, Rajeev Sharma
Faculty of Engineering and Information Sciences - Papers: Part A
Prior research has examined the direct relationship between the firm IT capabilities and firm performance. Here, we extend that stream of literature and examine the mediating effects of performance at the process level on the relationship between firm IT capabilities and firm performance. This paper draws on the resource-based theory and the dynamic capabilities perspective to develop a theoretical framework to examine the mediated effects. The results suggest that the effect of firm IT capabilities on firm performance is mediated through performance at the process level.
Analysing The Merit Of Latent Variables Over Traditional Objective Attributes For Traveller Mode Choice Using Rpl Model, Ahm Mehbub Anwar, A Kiet Tieu, Peter Gibson, Khin Than Win, Matthew Berryman
Analysing The Merit Of Latent Variables Over Traditional Objective Attributes For Traveller Mode Choice Using Rpl Model, Ahm Mehbub Anwar, A Kiet Tieu, Peter Gibson, Khin Than Win, Matthew Berryman
Faculty of Engineering and Information Sciences - Papers: Part A
In real life, the attributes that influence individual choice may be complex. The traditional objective attributes can be incorporated easily into choice models. However, there are also latent preference heterogeneities that are of ten overlooked by the traditional thinkers of transport planners. This paper deals with this issue firstly by testing the adequacy of objective attributes representing latent variables (LVs). It then quantifies the effect of LVs over objective attributes on traveller mode choice using the random parameter logit (RPL) model. Understanding these attributes is essential if transport agencies are to understand traveller behaviour when determining effective transport policies. This …
Vertical Drain Consolidation With Piecewise Linear Surcharge And Vacuum, Rohan Walker
Vertical Drain Consolidation With Piecewise Linear Surcharge And Vacuum, Rohan Walker
Faculty of Engineering and Information Sciences - Papers: Part A
Maintaining the simplicity of Hansbo's (1981) solution, this paper presents radial consolidation equations that capture some of the versatility of more complex analytical solutions. Material and geometry properties may vary piecewise-constant with time while loading/unloading, both surcharge and vacuum, may vary piecewise-linear with time. The new equations are easily implemented in a spreadsheet or computer program providing a simple yet versatile tool for analysis of consolidation problems dominated by radial drainage. Computer code for implementing the new approach in Microsoft Excel is provided
Performance And Prediction Of Vacuum Consolidation Behaviour At Port Of Brisbane, Buddhima Indraratna, Cholachat Rujikiatkamjorn, Xueyu Geng, Jayantha Ameratunga
Performance And Prediction Of Vacuum Consolidation Behaviour At Port Of Brisbane, Buddhima Indraratna, Cholachat Rujikiatkamjorn, Xueyu Geng, Jayantha Ameratunga
Faculty of Engineering and Information Sciences - Papers: Part A
Due to a projected increase in trade activities at the Port of Brisbane, new berths on Fisherman Islands at the mouth of the Brisbane River will be constructed in the outer area(235ha) close to the existing port facilities via land reclamation. A vacuum assisted surcharge load in conjunction with prefabricated vertical drains was chosen to reduce the required consolidation time. The features of the combined vacuum and surcharge fill system and the construction of the embankment are described in this paper. A comparison of the performance of the vacuum combined surcharge loading system with a standard surcharge fill emphasises the …
Voltage Unbalance Emission Assessment In Interconnected Power Systems, Jayatunga Vitharanage Upuli Priyadarshani Jayatunga, Sarath Perera, Philip Ciufo, Ashish Agalgaonkar
Voltage Unbalance Emission Assessment In Interconnected Power Systems, Jayatunga Vitharanage Upuli Priyadarshani Jayatunga, Sarath Perera, Philip Ciufo, Ashish Agalgaonkar
Faculty of Engineering and Information Sciences - Papers: Part A
The International Electrotechnical Commission (IEC) Technical Report IEC/TR 61000-3-13:2008 considers voltage unbalance (VU) emission assessment as a key aspect of the VU management of power systems. Compliance assessment of unbalanced installations at the post connection stage is essential to ensure that the limits set by the IEC VU emission allocation methodology in the pre-connection stage are met. Although VU is known to be caused by load asymmetries and inherent network asymmetries, locating all VU emission sources is not a straightforward process, especially in a network with interconnections. Such assessment methodologies should ensure that the contributions from various sources of unbalance …
Unintended Adverse Consequences Of Introducing Electronic Health Records In Residential Aged Care Homes, Ping Yu, Yiting Zhang, Yang Gong, Jianjia Zhang
Unintended Adverse Consequences Of Introducing Electronic Health Records In Residential Aged Care Homes, Ping Yu, Yiting Zhang, Yang Gong, Jianjia Zhang
Faculty of Engineering and Information Sciences - Papers: Part A
The aim of this study was to investigate the unintended adverse consequences ofintroducing electronic health records (EHR) in residential aged care homes (RACHs) and toexamine the causes of these unintended adverse consequences.Method: A qualitative interview study was conducted in nine RACHs belonging to three orga-nisations in the Australian Capital Territory (ACT), New South Wales (NSW) and Queensland,Australia. A longitudinal investigation after the implementation of the aged care EHR sys-tems was conducted at two data points: January 2009 to December 2009 and December 2010to February 2011. Semi-structured interviews were conducted with 110 care staff membersidentified through convenience sampling, representing all levels …
Location And Tracking Of Mobile Devices: Überveillance Stalks The Streets, Katina Michael, Roger Clarke
Location And Tracking Of Mobile Devices: Überveillance Stalks The Streets, Katina Michael, Roger Clarke
Faculty of Engineering and Information Sciences - Papers: Part A
During the last decade, location-tracking and monitoring applications have proliferated, in mobile cellular and wireless data networks, and through self-reporting by applications running in smartphones that are equipped with onboard global positioning system (GPS) chipsets. It is now possible to locate a smartphone user's location not merely to a cell, but to a small area within it. Innovators have been quick to capitalise on these location-based technologies for commercial purposes, and have gained access to a great deal of sensitive personal data in the process. In addition, law enforcement utilises these technologies, can do so inexpensively and hence can track …
Maximizing The Healthcare Environment: A Systematic Review Exploring The Potential Of Computer Technology To Promote Self-Management Of Chronic Illness In Healthcare Settings, Mairtin S. Mcdermott, Alison E. While
Maximizing The Healthcare Environment: A Systematic Review Exploring The Potential Of Computer Technology To Promote Self-Management Of Chronic Illness In Healthcare Settings, Mairtin S. Mcdermott, Alison E. While
Faculty of Engineering and Information Sciences - Papers: Part A
Objective The aim of this systematic review is to investigate the effectiveness of using computers to deliver patient self-management programs (PSMPs) to patients with chronic illness in health supported settings. Methods We included randomized controlled trials (RCTs), where the experimental intervention was compared either with an equivalent 'standard' PSMP delivered by staff, usual care or no intervention and reported data either on clinical or behavioral outcomes. We conducted a narrative synthesis, incorporating a small quantitative analysis to enable comparisons across studies. Results A total of 11 studies met the inclusion criteria. There was insufficient evidence to determine whether computer-based PSMPs …
Factors Associated With Differences In Quit Rates Between 'Specialist' And 'Community' Stop-Smoking Practitioners In The English Stop-Smoking Services, Mairtin S. Mcdermott, Emma Beard, Leonie S. Brose, Robert West, Andy Mcewen
Factors Associated With Differences In Quit Rates Between 'Specialist' And 'Community' Stop-Smoking Practitioners In The English Stop-Smoking Services, Mairtin S. Mcdermott, Emma Beard, Leonie S. Brose, Robert West, Andy Mcewen
Faculty of Engineering and Information Sciences - Papers: Part A
Introduction: Behavioral support improves smokers' chances of quitting, but quit rates are typically lower for smokers supported by "community practitioners" for whom smoking cessation is a small part of their job than for those supported by "specialist practitioners" for whom it is the main role. This article examined the factors that might contribute to this. Method: A total of 573 specialist practitioners and 466 community practitioners completed a 42-item online survey that covered demographic and employment information, current practices, levels of training, and 4-week CO-verified quit rates. Responses were compared for community and specialist practitioners. Mediation analysis was undertaken to …
Change In Anxiety Following Successful And Unsuccessful Attempts At Smoking Cessation: Cohort Study, Mairtin S. Mcdermott, Theresa M. Marteau, Gareth J. Hollands, Matthew Hankins, Paul Aveyard
Change In Anxiety Following Successful And Unsuccessful Attempts At Smoking Cessation: Cohort Study, Mairtin S. Mcdermott, Theresa M. Marteau, Gareth J. Hollands, Matthew Hankins, Paul Aveyard
Faculty of Engineering and Information Sciences - Papers: Part A
Background Despite a lack of empirical evidence, many smokers and health professionals believe that tobacco smoking reduces anxiety, which may deter smoking cessation. Aims The study aim was to assess whether successful smoking cessation or relapse to smoking after a quit attempt are associated with changes in anxiety. Method A total of 491 smokers attending National Health Service smoking cessation clinics in England were followed up 6 months after enrolment in a trial of pharmacogenetic tailoring of nicotine replacement therapy (ISRCTN14352545). Results There was a points difference of 11.8 (95% CI 7.7-16.0) in anxiety score 6 months after cessation between …
Holden To Cease Making Cars In Australia By 2017: Experts React, Paul Gollan, Hamza Bendemra, Henry Ergas, Elizabeth Van Acker, Nicholas Economou, Phil Toner
Holden To Cease Making Cars In Australia By 2017: Experts React, Paul Gollan, Hamza Bendemra, Henry Ergas, Elizabeth Van Acker, Nicholas Economou, Phil Toner
Faculty of Engineering and Information Sciences - Papers: Part A
General Motors Holden has confirmed speculation it will withdraw from car production in Australia by the end of 2017. The announcement by Holden comes after days of sustained public speculation and calls from the federal government for the company to clarify its intentions. Holden has said it will "transition to a national sales company in Australia and New Zealand" and "discontinue vehicle and engine manufacturing and significantly reduce its engineering operations in Australia by the end of 2017." GM Chairman and chief executive officer Dan Akerson cited a "perfect storm of negative influences", including the sustained strength of the Australian …
Embracing Complexity In Engineering Education: A Way Forward For Developing Intercultural Competency, Thomas Goldfinch
Embracing Complexity In Engineering Education: A Way Forward For Developing Intercultural Competency, Thomas Goldfinch
Faculty of Engineering and Information Sciences - Papers: Part A
towards engineering education that prepares graduates to work effectively across foreign cultures and customs1-3. The author argues that while this outward focus is important and necessary, there is also a need to focus on preparing graduates for cultural issues that will arise much closer to home. Identifying, and working with subtle cultural differences that can occur in workplaces, organizations and the community, where the population may initially appear monocultural, presents unique challenges. The way in which one assumes cultural uniformity in a given situation can contribute to the oversimplification of a problem, and subsequently the pursuit of ineffective solutions. In …
Fall Risk Assessment In Older People Using Inertial Sensors, Maryam Ghahramani, Fazel Naghdy, David Stirling, Golshah Naghdy, Jan Potter
Fall Risk Assessment In Older People Using Inertial Sensors, Maryam Ghahramani, Fazel Naghdy, David Stirling, Golshah Naghdy, Jan Potter
Faculty of Engineering and Information Sciences - Papers: Part A
Abstract of paper that was presented at The 12th National Conference of Emerging Researchers in Ageing.
Mixed-Metal (Li, Al) Amidoborane: Synthesis And Enhanced Hydrogen Storage Properties, Guanglin Xia, Yingbin Tan, Xiaowei Chen, Zaiping Guo, Hua-Kun Liu, Xuebin Yu
Mixed-Metal (Li, Al) Amidoborane: Synthesis And Enhanced Hydrogen Storage Properties, Guanglin Xia, Yingbin Tan, Xiaowei Chen, Zaiping Guo, Hua-Kun Liu, Xuebin Yu
Faculty of Engineering and Information Sciences - Papers: Part A
Mixed-metal (Li, Al) amidoborane has been synthesized via mechanical ball milling of ammonia borane with lithium hexahydridoaluminate in different molar ratios. The reversible dehydrogenation properties of the thus-synthesized metallic amidoborane and its mixtures with ammonia borane in different ratios were systematically investigated in comparison with neat ammonia borane (AB). On the basis of thermogravimetric analysis and mass spectrometry results, the thus-synthesized mixed-metal amidoborane was shown to release around 10 wt% hydrogen below 200 degrees C, with an effective suppression of volatile side products. Furthermore, a synergistic effect between metallic amidoborane and ammonia borane has been identified, which leads to the …
Rapid Synthesis Of Free-Standing Moo3/Graphene Films By The Microwave Hydrothermal Method As Cathode For Bendable Lithium Batteries, Lukman Noerochim, Jia-Zhao Wang, David Wexler, Zhong Chao, Hua-Kun Liu
Rapid Synthesis Of Free-Standing Moo3/Graphene Films By The Microwave Hydrothermal Method As Cathode For Bendable Lithium Batteries, Lukman Noerochim, Jia-Zhao Wang, David Wexler, Zhong Chao, Hua-Kun Liu
Faculty of Engineering and Information Sciences - Papers: Part A
Highly flexible, binder-free, MoO3 nanobelt/graphene film electrode is prepared by a two-step microwave hydrothermal method. Graphene is first prepared by an ultra-fast microwave hydrothermal method and then mixed with MoO3 solution to synthesize the MoO3 nanobelt/graphene composite, which exhibits the combination of stacked graphene sheets and uniform MoO3 nanobelts with widths of 200-500 nm and lengths of 5-10 μm. The charge-discharge measurements show that the as-synthesized MoO3/graphene hybrid materials demonstrate excellent rate capability, large capacity, and good cycling stability compared to the pure MoO3 film. An initial discharge capacity of 291 mAh g-1 can be obtained at 100 mA g-1, …
Gestural Interface Technology In Early Childhood Education: A Framework For Fully Engaged Communication, Holly Tootell, Melinda Plumb, Colin D. Hadfield, Linda Dawson
Gestural Interface Technology In Early Childhood Education: A Framework For Fully Engaged Communication, Holly Tootell, Melinda Plumb, Colin D. Hadfield, Linda Dawson
Faculty of Engineering and Information Sciences - Papers: Part A
Gestural Interface Technology (GIT) has changed the way technology is adopted in classrooms for all ages. The accessibility of control through touch means that technology such as Apple's iPad can be used in early childhood education. In this paper, we introduce a framework for fully-engaged communication, developed from educational pedagogy and critical engagement in information systems. The intersection of these dimensions creates a view of a GIT lifeworld approach which allows it to be used to understand multiple layers of engagement that exist within an early childhood education environment.
Changes In Surface Properties And Separation Efficiency Of A Nanofiltration Membrane After Repeated Fouling And Chemical Cleaning Cycles, Alexander Simon, William E. Price, Long D. Nghiem
Changes In Surface Properties And Separation Efficiency Of A Nanofiltration Membrane After Repeated Fouling And Chemical Cleaning Cycles, Alexander Simon, William E. Price, Long D. Nghiem
Faculty of Engineering and Information Sciences - Papers: Part A
The aim of this study was to evaluate the changes in membrane surface properties and solute separation by a nanofiltration membrane during repetitive membrane fouling and chemical cleaning. Secondary treated effluent and model fouling solutions containing humic acids, sodium alginate, or silica colloids were used to simulate membrane fouling. Chemical cleaning was carried out using a commercially available caustic cleaning formulation. Carbamazepine and sulfamethoxazole were selected to examine the filtration behaviour of neutral and negatively charged organic compounds, respectively. Results show that the impact of membrane fouling on solute rejection is governed by pore blocking, modification of the membrane surface …
The Response Of Axially Restrained Non-Composite Steel-Concrete-Steel Sandwich Panels Due To Large Impact Loading, Alex M. Remennikov, Sih Ying Kong, Brian Uy
The Response Of Axially Restrained Non-Composite Steel-Concrete-Steel Sandwich Panels Due To Large Impact Loading, Alex M. Remennikov, Sih Ying Kong, Brian Uy
Faculty of Engineering and Information Sciences - Papers: Part A
In conventional steel-concrete-steel (SCS) construction, the external steel plates are connected to the concrete infill by welded shear stud connectors. This paper describes a programme of experimental and numerical investigations on reduced-scale non-composite SCS panels with axially restrained connections. The experimental results have demonstrated that the non-composite SCS panels are capable of developing enhanced load-carrying capacity through the tensile membrane resistance of the steel faceplates. This type of construction was found to exhibit highly ductile response and be able to sustain large end rotations of up to 18° without collapse. High fidelity finite element models for SCS panels under impact …
Stress-Strain Degradation Response Of Railway Ballast Stabilized With Geosynthetics, Buddhima Indraratna, Sanjay Nimbalkar
Stress-Strain Degradation Response Of Railway Ballast Stabilized With Geosynthetics, Buddhima Indraratna, Sanjay Nimbalkar
Faculty of Engineering and Information Sciences - Papers: Part A
Large cyclic loading on ballasted railroad tracks is now inevitable owing to an increased demand for freight and public transport. This leads to a progressive deterioration and densification of railroad ballast and consequently to the loss of track geometry and differential settlement. Understanding these complex stress-strain and degradation mechanisms is essential to predict the desirable track maintenance cycle, as well as the design of new track. This paper presents the results of cyclic drained tests and numerical studies carried out on a segment of model railway track supported on geosynthetically reinforced railroad ballast bed. The relative performance and effectiveness of …
Greenland Ice Sheet Mass Balance Reconstruction. Part I: Net Snow Accumulation (1600-2009), Jason E. Box, Noel Cressie, David H. Bromwich, Ji-Hoon Jung, Michiel Van Den Broeke, J H. Van Angelen, Richard R. Forster, Clement Miege, Ellen Mosley-Thompson, Bo Vinther, Joseph R. Mcconnell
Greenland Ice Sheet Mass Balance Reconstruction. Part I: Net Snow Accumulation (1600-2009), Jason E. Box, Noel Cressie, David H. Bromwich, Ji-Hoon Jung, Michiel Van Den Broeke, J H. Van Angelen, Richard R. Forster, Clement Miege, Ellen Mosley-Thompson, Bo Vinther, Joseph R. Mcconnell
Faculty of Engineering and Information Sciences - Papers: Part A
Ice core data are combined with RACMO2 regional climate model (RCM) output (1958-2010) to develop a reconstruction of the Greenland ice sheet net snow accumulation rate (Ât(G)) spanning years 1600-2009. Regression parameters from RCM output regressed on 86 ice cores are used with available cores in a given year resulting in the reconstructed values. Each core site’s residual variance is used to inversely weight the cores’ respective contributions. The interannual amplitude of the reconstructed accumulation rate is damped by the regressions and is thus calibrated to match that of the RCM data. Uncertainty and significance of changes is measured using …
A Random Effect Block Bootstrap For Clustered Data, Raymond L. Chambers, Hukum Chandra
A Random Effect Block Bootstrap For Clustered Data, Raymond L. Chambers, Hukum Chandra
Faculty of Engineering and Information Sciences - Papers: Part A
Random effects models for hierarchically dependent data, e.g. clustered data, are widely used. A popular bootstrap method for such data is the parametric bootstrap based on the same random effects model as that used in inference. However, it is hard to justify this type of bootstrap when this model is known to be an approximation. In this paper we describe a random effect block bootstrap approach for clustered data that is simple to implement, free of both the distribution and the dependence assumptions of the parametric bootstrap and is consistent when the mixed model assumptions are valid. Results based on …
Influence Of Rock Depth On Seismic Site Classification For Shallow Bedrock Regions, P Anbazhagan, M. Neaz Sheikh, Aditya Parihar
Influence Of Rock Depth On Seismic Site Classification For Shallow Bedrock Regions, P Anbazhagan, M. Neaz Sheikh, Aditya Parihar
Faculty of Engineering and Information Sciences - Papers: Part A
Seismic site classifications are used to represent site effects for estimating hazard parameters (response spectral ordinates) at the soil surface. Seismic site classifications have generally been carried out using average shear wave velocity and/or standard penetration test n-values of top 30-m soil layers, according to the recommendations of the National Earthquake Hazards Reduction Program (NEHRP) or the International Building Code (IBC). The site classification system in the NEHRP and the IBC is based on the studies carried out in the United States where soil layers extend up to several hundred meters before reaching any distinct soil-bedrock interface and may not …
Impact Of Chemical Cleaning On The Nanofiltration Of Pharmaceutically Active Compounds (Phacs): The Role Of Cleaning Temperature, Alexander Simon, William E. Price, Long D. Nghiem
Impact Of Chemical Cleaning On The Nanofiltration Of Pharmaceutically Active Compounds (Phacs): The Role Of Cleaning Temperature, Alexander Simon, William E. Price, Long D. Nghiem
Faculty of Engineering and Information Sciences - Papers: Part A
This study investigated the impact of chemical cleaning on the physicochemical properties of a nanofiltration membrane and its subsequent separation efficiency of inorganic salts and two pharmaceutically active compounds (PhACs), sulfamethoxazole and carbamazepine. Chemical cleaning was simulated by immersing virgin membrane samples in aqueous citric acid, sodium hydroxide (NaOH), ethylenediaminetetraacetic-acid (EDTA) and sodium dodecyl sulphate (SDS) at various temperatures for 18 h. The cleaning temperature did not exert any discernible impact on the surface charge of the NF270 membrane selected in this study. However, high cleaning temperatures were shown to either amplify or reduce the impact of chemical cleaning on …
Sparse Representation Of Gpr Traces With Application To Signal Classification, Wenbin Shao, Abdesselam Bouzerdoum, Son Lam Phung
Sparse Representation Of Gpr Traces With Application To Signal Classification, Wenbin Shao, Abdesselam Bouzerdoum, Son Lam Phung
Faculty of Engineering and Information Sciences - Papers: Part A
Sparse representation (SR) models a signal with a small number of elementary waves using an overcomplete dictionary. It has been employed for a wide range of signal and image processing applications, including denoising, deblurring, and compression. In this paper, we present an adaptive SR method for modeling and classifying ground penetrating radar (GPR) signals. The proposed method decomposes each GPR trace into elementary waves using an adaptive Gabor dictionary. The sparse decomposition is used to extract salient features for SR and classification of GPR signals. Experimental results on real-world data show that the proposed sparse decomposition achieves efficient signal representation …